
package com.controller;

import com.annotation.IgnoreAuth;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.entity.NewsEntity;
import com.entity.view.NewsView;
import com.service.DictionaryService;
import com.service.NewsService;
import com.utils.CommonUtil;
import com.utils.PageUtils;
import com.utils.PoiUtil;
import com.utils.R;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.net.URL;
import java.util.*;

/**
 * 公告信息
 */
@RestController
@Controller
@RequestMapping("/news")
public class NewsController {

    private static final Logger logger = LoggerFactory.getLogger(NewsController.class);

    @Resource
    private NewsService newsService;

    @Resource
    private DictionaryService dictionaryService;

    /**
     * 后端列表
     */
    @RequestMapping("/page")
    public R page(@RequestParam Map<String, Object> params, HttpServletRequest request) {
        String role = String.valueOf(request.getSession().getAttribute("role"));
        if ("用户".equals(role))
            params.put("yonghuId", request.getSession().getAttribute("userId"));
        else if ("商家".equals(role))
            params.put("shangjiaId", request.getSession().getAttribute("userId"));
        CommonUtil.checkMap(params);
        PageUtils page = newsService.queryPage(params);

        //字典表数据转换
        List<NewsView> list = (List<NewsView>) page.getList();
        for (NewsView c : list) {
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(c, request);
        }
        return R.ok().put("data", page);
    }

    /**
     * 后端详情
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Long id, HttpServletRequest request) {
        NewsEntity news = newsService.selectById(id);
        if (news != null) {
            //entity转view
            NewsView view = new NewsView();
            BeanUtils.copyProperties(news, view);//把实体数据重构到view中
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(view, request);
            return R.ok().put("data", view);
        } else {
            return R.error(511, "查不到数据");
        }

    }

    /**
     * 后端保存
     */
    @RequestMapping("/save")
    public R save(@RequestBody NewsEntity news, HttpServletRequest request) {
        Wrapper<NewsEntity> queryWrapper = new EntityWrapper<NewsEntity>()
                .eq("news_name", news.getNewsName())
                .eq("news_types", news.getNewsTypes());

        logger.info("sql语句:" + queryWrapper.getSqlSegment());
        NewsEntity newsEntity = newsService.selectOne(queryWrapper);
        if (newsEntity == null) {
            news.setInsertTime(new Date());
            news.setCreateTime(new Date());
            newsService.insert(news);
            return R.ok();
        } else {
            return R.error(511, "表中有相同数据");
        }
    }

    /**
     * 后端修改
     */
    @RequestMapping("/update")
    public R update(@RequestBody NewsEntity news) throws NoSuchFieldException, ClassNotFoundException, IllegalAccessException, InstantiationException {
        if ("".equals(news.getNewsPhoto()) || "null".equals(news.getNewsPhoto())) {
            news.setNewsPhoto(null);
        }
        newsService.updateById(news);
        return R.ok();
    }

    /**
     * 删除
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Integer[] ids) {
        newsService.deleteBatchIds(Arrays.asList(ids));
        return R.ok();
    }

    /**
     * 批量上传
     */
    @RequestMapping("/batchInsert")
    public R save(String fileName) {
        try {
            List<NewsEntity> newsList = new ArrayList<>();//上传的东西
            int lastIndexOf = fileName.lastIndexOf(".");
            if (lastIndexOf == -1) {
                return R.error(511, "该文件没有后缀");
            } else {
                String suffix = fileName.substring(lastIndexOf);
                if (!".xls".equals(suffix)) {
                    return R.error(511, "只支持后缀为xls的excel文件");
                } else {
                    URL resource = this.getClass().getClassLoader().getResource("static/upload/" + fileName);//获取文件路径
                    File file = new File(resource.getFile());
                    if (!file.exists()) {
                        return R.error(511, "找不到上传文件，请联系管理员");
                    } else {
                        List<List<String>> dataList = PoiUtil.poiImport(file.getPath());//读取xls文件
                        dataList.remove(0);//删除第一行，因为第一行是提示
                        for (List<String> data : dataList) {
                            //循环
                            NewsEntity newsEntity = new NewsEntity();
                            newsList.add(newsEntity);
                        }

                        //查询是否重复
                        newsService.insertBatch(newsList);
                        return R.ok();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            return R.error(511, "批量插入数据异常，请联系管理员");
        }
    }

    /**
     * 前端列表
     */
    @IgnoreAuth
    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params, HttpServletRequest request) {
        CommonUtil.checkMap(params);
        PageUtils page = newsService.queryPage(params);

        //字典表数据转换
        List<NewsView> list = (List<NewsView>) page.getList();
        for (NewsView c : list)
            dictionaryService.dictionaryConvert(c, request); //修改对应字典表字段

        return R.ok().put("data", page);
    }

    /**
     * 前端详情
     */
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") Long id, HttpServletRequest request) {
        NewsEntity news = newsService.selectById(id);
        if (news != null) {
            //entity转view
            NewsView view = new NewsView();
            BeanUtils.copyProperties(news, view);//把实体数据重构到view中
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(view, request);
            return R.ok().put("data", view);
        } else {
            return R.error(511, "查不到数据");
        }
    }

    /**
     * 前端保存
     */
    @RequestMapping("/add")
    public R add(@RequestBody NewsEntity news) {
        Wrapper<NewsEntity> queryWrapper = new EntityWrapper<NewsEntity>()
                .eq("news_name", news.getNewsName())
                .eq("news_types", news.getNewsTypes());
        NewsEntity newsEntity = newsService.selectOne(queryWrapper);
        if (newsEntity == null) {
            news.setInsertTime(new Date());
            news.setCreateTime(new Date());
            newsService.insert(news);

            return R.ok();
        } else {
            return R.error(511, "表中有相同数据");
        }
    }

}

